Bacteremia due to Moraxella osloensis : a case report and literature review

Maruyama, Yuta; Shigemura, Tomonari; Aoyama, Koki; Nagano, Noriyuki; Nakazawa, Yozo

doi:10.1016/j.bjid.2017.10.008

Cited by 8 publications

(4 citation statements)

References 8 publications

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“…The representative sequence of the sOTU assigned to Enhydrobacter in the current and above-mentioned studies had sequence similarity to both Moraxella osloensis and Enhydrobacter aerosaccus . Moraxella osloensis is a human commensal organism that rarely causes infections other than in immunocompromised individuals ( 38 ). In both this and in our previous study, Enhydrobacter had a higher abundance in Norwegian samples than in samples from the other European countries; however, in Møretrø et al ( 12 ) the lower relative abundance in Portuguese items compared to Norwegian items was mainly due to a lower abundance in sponges than in brushes.…”

Section: Discussionmentioning

confidence: 99%

Mapping the Kitchen Microbiota in Five European Countries Reveals a Set of Core Bacteria across Countries, Kitchen Surfaces, and Cleaning Utensils

Moen

Langsrud

Berget

et al. 2023

Appl Environ Microbiol

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Section: Discussionmentioning

confidence: 99%

Mapping the Kitchen Microbiota in Five European Countries Reveals a Set of Core Bacteria across Countries, Kitchen Surfaces, and Cleaning Utensils

Moen

Langsrud

Berget

et al. 2023

Appl Environ Microbiol

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“…Moreover, while the more common Moraxella species (e.g., M. catarrhalis) are typically β-lactamase producing, this has been inconsistently reported among clinical M. osloensis isolates [5,6]. This uncertainty is illuminated by case reports showing sensitivities and effective treatment of this species in children with penicillin and ampicillin, which should not be effective in a β-lactamase producing organism [3,4]. Some reported cases, however, have required multiple trials of different antibiotics to achieve effective therapy.…”

Section: Discussionmentioning

confidence: 99%

“…M. osloensis has been isolated from environmental sources, and there have been few reports of the organism causing human disease in older and/or immunocompromised patients [3,4]. Among previously healthy children and adolescents, M. osloensis infection has been rarely reported.…”

Section: Introductionmentioning

confidence: 99%

Moraxella osloensis Bacteremia and Pneumonia in a Seventeen-Year-Old Patient

2022

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Moraxella osloensis (M. osloensis) is a rare cause of bacteremia and pneumonia in pediatric patients. The published case reports of M. osloensis bacteremia are limited. Among children, there are only seven cases of invasive disease from M. osloensis identified, and specific treatment guidelines are not available. Our case adds to the limited literature on this rare bacterium and highlights the need to better define antimicrobial resistance patterns. Here we report a case of a 17-yearold previously healthy female admitted with M. osloensis bacteremia and pneumonia. The patient initially presented with clinical and radiographic findings consistent with community-acquired pneumonia and was sent home after an emergency department (ED) visit with oral antibiotic treatment. She was advised to return for admission after the blood culture obtained in the ED reported growth and was noted to have persistent symptoms despite antibiotic adherence. Treatment with ceftriaxone for 3 days intravenously followed by 7 days of oral cefdinir resulted in rapid clinical improvement and resolution of her infection. Due to its sparse prevalence in the literature, there is currently no standard antibiotic regimen for treatment of invasive infections with M. osloensis; a variety of therapies ranging from 7 to 14 days in duration have been successfully employed. While Moraxella species (e.g., Moraxella catarrhalis (M. catarrhalis)) are typically β-lactamase producing, reports regarding β-lactamase production by M. osloensis have been inconsistent. M. osloensis is a rare cause of invasive infection in adolescents. Given limited published data regarding antibiotic sensitivities of this specific organism, microbiologic sensitivities should be obtained if possible and response to therapy should be closely monitored.

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“…Moraxella osloensis showed a more significant difference in younger and older CRC patients (11 and 46%; p = 0.043, Fisher's exact test). M. osloensis, an anaerobic bacterium from healthy respiratory tract, is a rare pathogen found in immunocompromised patients such as cancer and organ recipients [82,83]. Some cases of M. osloensis infection in cancer include leukemia, melanoma, Hodgkin disease, breast, pancreas, and lung carcinoma [83,84].…”

Section: Gut Microbiota Profiles In Eocrc and Locrcmentioning

confidence: 99%

Gut Microbiota Profiles in Early- and Late-Onset Colorectal Cancer: A Potential Diagnostic Biomarker in the Future

et al. 2021

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Background: Researchers believe the role of gut microbiota dysbiosis in the raised incidence of early-onset colorectal cancer (EOCRC). The development of EOCRC may be associated with microbiota dysbiosis either dependently or independently (combined with other risk factors). Summary: Recently, the rising of incidence and mortality of EOCRC have been noted. Some researchers are looking for risk factors influencing this fact. They hypothesize that it may be because of microbiota dysbiosis. Microbiota dysbiosis has been known to promote cancer development through immunity dysregulation and chronic inflammation. Microbiomes profile in late-onset colorectal cancer (LOCRC) among older patients has been documented, but there is still lack of data about microbial profiles among younger colorectal cancer (CRC) patients. This review tries to explain microbial profiles differences between EOCRC and LOCRC as a potential diagnostic biomarker in the future, and whether microbiota can have a role in EOCRC genesis. Key Messages: Microbiota does vary with age, and EOCRC may be associated with colonization of some specific bacteria. Further studies about gut microbiota profiles in EOCRC and LOCRC may provide a new insight on diagnostic biomarker of CRC.

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Bacteremia due to Moraxella osloensis : a case report and literature review

Cited by 8 publications

References 8 publications

Mapping the Kitchen Microbiota in Five European Countries Reveals a Set of Core Bacteria across Countries, Kitchen Surfaces, and Cleaning Utensils

Mapping the Kitchen Microbiota in Five European Countries Reveals a Set of Core Bacteria across Countries, Kitchen Surfaces, and Cleaning Utensils

Moraxella osloensis Bacteremia and Pneumonia in a Seventeen-Year-Old Patient

Gut Microbiota Profiles in Early- and Late-Onset Colorectal Cancer: A Potential Diagnostic Biomarker in the Future

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